I have created a file with several layers, and each layer has several sublayers, When I open the document, all the parent layers are expanded in the layers panel, making a very long list. I would like to have the layer panel display only the parent layers at the start. Is there a way to set this up?

I'm on Barb's side. The Yellow layer color is useless. I'd like to get rid of that color (Layer 5) permanently. Her question wasn't answered except for the temporary fix. Is there a way to remove this color forever?